Willow was sought.
Would you bow, before you leave?
Would = Wood, bow = bough, leave = leaf. Not a clue in the traditional sense, but some tree-references.
You keep your age concealed inside
Tree's can be aged via their rings; Willow is a Arborun (tree) Lignea
Yet many rings you wear.
At 23, Willow is quite old. Double reference to her horse-blood being of a gypsy vanner; Gypsy's traditionally wear lots of rings/jewelry, etc.
But just you wait, it’s still my turn,
From her profile, ...Willow to be very brave and bold, often causing her to act out of turn
So hold that jealous stare.
Willow has green eyes. The common association with a 'jealous stare' is green eyes (hence 'Green Eyed Monster' refers to someone who is jealous).
Convincing them you’d fill their need
You were far below the bar,
Again from her profile, Enters the Windtossed Foothills as Paladin has called together a herd meeting. Watches quietly, but speaks up in the hopes of taking the Storyteller position. Is granted it, but realizes she doesn't know about this land or the duties of the rank.
With such an unoriginal friend,
Her companion is an ermine named Ermine.
Who never strays too far.
Ermine is described as often staying within Willow's boughs, Ermine spends a lot of time in Willow's tree...